College student Iwatani Naofumi is reading a book titled "The Records of the Four Cardinal Weapons" in the library when he is suddenly summoned to another world and told he has to save the world as the Shield Hero, one of the Four Cardinal Heroes. And one morning, he finds all his money and equipment gone.
If that isn't proof they were in it together,
 I don't know what is!
إن لم يكن هذا بُرهاناً بأنّهما خطّطا لهذا
معاً فماذا يكون إذاً؟
Wenn das kein Beweis ist, was dann?
Eso es la prueba.
Eso es la prueba.
Si ça, c’est pas une preuve,
je vois pas ce que c’est !
Se questa non è una prova schiacciante,
non vedo cos'altro potrebbe esserlo!
Se isso não for a prova, o que mais seria?!
Если это не доказательство…
то что же?!